401306253231 has 24 divisors (see below), whose sum is σ = 608158997040. Its totient is φ = 233959912704.

The previous prime is 401306253211. The next prime is 401306253259. The reversal of 401306253231 is 132352603104.

It is not a de Polignac number, because 401306253231 - 2¹⁴ = 401306236847 is a prime.

It is a super-2 number, since 2×401306253231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401306253211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14237866 + ... + 14266023.

It is an arithmetic number, because the mean of its divisors is an integer number (25339958210).

Almost surely, 2^401306253231 is an apocalyptic number.

401306253231 is a deficient number, since it is larger than the sum of its proper divisors (206852743809).

401306253231 is a wasteful number, since it uses less digits than its factorization.

401306253231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28503943 (or 28503924 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 401306253231 its reverse (132352603104), we get a palindrome (533658856335).

The spelling of 401306253231 in words is "four hundred one billion, three hundred six million, two hundred fifty-three thousand, two hundred thirty-one".